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Just my personal opinion here, but I think the move should be banned. It's a brutal move, thrown with the intention to inflict severe injury. It's different than a haymaker which causes an injury to your brain and knocks you out because it doesn't take 3+ months to recover from a concussion as opposed to a knee operation with rehabilitation. The jones fingers, where he puts his fingers in front of people's faces should be banned as well because he is putting his fingers there with the intention to cause damage to the eyes if they advance. The spinning elbow I'm not so sure about, it's very unpredictable, but I think the strike is legit since it's so unpredictable.

PTW read the thread before you post, it's been made very clear that IT IS NOT A DAMAGING strike. The fingers should be banned but i've heard the ref screaming at him to stop it against Vitor.

Of course its a damaging strike, the whole point of the kick is to hyperextend and damage the knee severly. Whether or not it's defendable by checking the kick is really not relevant, you can defend yourself from a nut shot also. Doesnt mean it should be allowed.

Every strike is a damaging strike. Read the doctor report that SmackyBear posted.., i've had that kick landed numerous times one me cos I didn't see it coming and no real damage. We use it in Muay Thai, I never hear of serious injury because of it.

In the article Smacky posted it says that a kick to the side of the knee joint is more damaging, meaning a low round kick.. nobody is going to be taking them out of the rules now are they?

Every strike is a damaging strike. Read the doctor report that SmackyBear posted.., i've had that kick landed numerous times one me cos I didn't see it coming and no real damage. We use it in Muay Thai, I never hear of serious injury because of it.

In the article Smacky posted it says that a kick to the side of the knee joint is more damaging, meaning a low round kick.. nobody is going to be taking them out of the rules now are they?

Yeah Ive used/had it used against me in Muay thai. It's never thrown as a kick to cause damage but is very effective at taking someones balance away and/or making them think about the possibility of that kick, whilst making it easier for you to throw something different.